Pregnant Budgie going insane

Ahh (rip out hair).Don't worry the birds mental state is fine. It's me that;s going insane. I went to the vet and found out my budgie had an egg in her around January 23. It is now Febuary 19. No egg at all. Not even one. She's still acting all right though and eating and talking occasionally (female birds don't talk much). So I don't know I'm scared for her but she's acting perfect. My mom is in no hurry to take her to the vet because she says constantly going and performing surgery on a tiny creature doesn't seem like a great idea. Is there anythign else to do?